Short answer: the Juzear x Koto Nebula. It ranks #481 of 1291 in-ear headphones by sound quality, rated 3.9/5, at $123.49; the Kiwi Ears Etude ranks #574, rated 3.8/5, at $119. With prices this close, go by the sound-quality ranking rather than the cost.
What the Juzear x Koto Nebula does well: The median of 7 hobbyist measurements gives it a solid Harman preference score of 73 with a 2.00 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The catch: Presence sits about 4.2 dB low with an 8.3 dB dip near 6.1 kHz, so vocals and instruments lose some bite.
What the Kiwi Ears Etude does well: The median of 17 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.05 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The catch: Presence sits about 4.7 dB low with a 5.8 dB dip near 4.0 kHz, so vocals and instruments lose some bite.
Buy the Juzear x Koto Nebula. It is rated higher for sound quality, and the $4.49 you would save on the Kiwi Ears Etude does not close the gap.
Looking for alternatives? See the complete Headphones rankings.
The median of 7 hobbyist measurements gives it a solid Harman preference score of 73 with a 2.00 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Amazon $123.49 eBay
The median of 17 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.05 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Linsoul $119 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Juzear x Koto Nebula | Kiwi Ears Etude | |
|---|---|---|
| Price | $123.49 | $119 |
| Ranked | #481 of 1291 in In-Ear Headphones | #574 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 73 (median of 7 squig.link measurements, calibrated to AutoEQ) | 71 (median of 17 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.00 dB standard deviation | 2.05 dB standard deviation |
| Tonal Tilt | -0.70 (negative is warmer, positive brighter) | -0.66 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.7 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.1 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 3 balanced armature + 1 planar) | Tribrid |
| Drivers | 1 x dynamic + 3 x balanced armature + 1 x micro planar | 1 x 10mm dynamic + 3 x balanced armature + 1 x vibration transducer |
| Impedance | 32 ohms | 5 ohms |
| Sensitivity | 110 dB | 104 dB/mW |
| Weight | 0 lbs (6.1 g) per earbud | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the Juzear x Koto Nebula from atechreviews, elrics, eplv, jaytiss, kuping-sensi, soundcheck39 and tonedeafmonk; the Kiwi Ears Etude from aden, aftersound, arn, atechreviews, audioamigo, avishai, bassaudio, fahryst, flare, hadoe, hbb, jaytiss, joycesreview, lumerion, silicagel, soundcheck39 and tonedeafmonk, all via squig.link.
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